【引用本文】 马怡飞, 汪广恒, 张尼, 等. 乙醇介质制备载炭泡塑及其在地质样品金测定中的应用[J]. 岩矿测试, 2018, 37(5): 533-540. doi: 10.15898/j.cnki.11-2131/td.201801150005
MA Yi-fei , WANG Guang-heng , ZHANG Ni , et al. Application of Carbon-loaded Polyurethane Foam Produced by Ethanol Media in Determination of Gold in Geological Samples[J]. Rock and Mineral Analysis, 2018, 37(5): 533-540. doi: 10.15898/j.cnki.11-2131/td.201801150005

乙醇介质制备载炭泡塑及其在地质样品金测定中的应用

1. 西安科技大学化学与化工学院, 陕西 西安 710054;

2. 西安西北有色地质研究院有限公司, 陕西 西安 710054

收稿日期: 2018-01-15  修回日期: 2018-03-05 

基金项目: 陕西省自然科学基础研究计划项目(2012JQ2009)

作者简介: 马怡飞,工程师,分析化学专业。E-mail:307725993@qq.com。。

Application of Carbon-loaded Polyurethane Foam Produced by Ethanol Media in Determination of Gold in Geological Samples

1. College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China;

2. Xi'an Northwest Geological Institute for Nonferrous Metals Co., LTD., Xi'an 710054, China

Received Date: 2018-01-15
Revised Date: 2018-03-05

摘要:载炭泡塑相较于无负载泡塑,可有效提高泡塑对金的吸附能力,但现有制备载炭泡塑的方法制备效率不高。为了缩短制备载炭泡塑的时间,提高制备效率,本文采用活性炭-乙醇溶液制备载炭泡塑,通过优化制备条件,包括负载介质的种类、试剂浓度、浸泡时间,使得制备100个载炭泡塑的时间可以控制在30 min之内,并结合ICP-OES建立了测定地质样品中金的方法。实验结果表明:该方法的振荡时间可以缩短至20 min。金的质量浓度在0.00~100.00 μg/mL范围内与光谱强度呈良好的线性关系,相关系数为0.9997,方法检出限(3 σ)为0.0066 μg/g,测定结果相对标准偏差为0.81%~2.11%(n=10)。该方法经4个国家标准物质验证,准确度与精密度良好,能够满足地质样品中金的分析测试要求。

关键词: 地质样品, , 载炭泡塑, 制备效率, 电感耦合等离子体发射光谱法

Application of Carbon-loaded Polyurethane Foam Produced by Ethanol Media in Determination of Gold in Geological Samples

KEY WORDS: geochemical samples, gold, carbon-loaded polyurethane foam, the preparation efficiency, Inductively Coupled Plasma-Optical Emission Spectrometry

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乙醇介质制备载炭泡塑及其在地质样品金测定中的应用

马怡飞, 汪广恒, 张尼, 高文旭, 权斌